Not all bats, a few species of bats, and it’s technically menstration but different from “overt menstration” found in humans and primates.
Most mammals have an estrous cycle where the uterine lining is reabsorbed if pregnancy doesn’t occur. If the uterine lining is destroyed instead, its menstration. Here’s a paper that has an overview of the other mammals that have menstrual cycles and how they work.
Not all bats, a few species of bats, and it’s technically menstration but different from “overt menstration” found in humans and primates.
Most mammals have an estrous cycle where the uterine lining is reabsorbed if pregnancy doesn’t occur. If the uterine lining is destroyed instead, its menstration. Here’s a paper that has an overview of the other mammals that have menstrual cycles and how they work.
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*Vampire detected*